This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 7 |
| 4 | 27 |
| 5 | 51 |
| 6 | 55 |
| 7 | 81 |
| 8 | 1471 |
| 9 | 1483 |
| 10 | 8668 |
| 11 | 10885 |
| 12 | 20803 |
| 13 | 32605 |
| 14 | 36391 |
| 15 | 57004 |
| 16 | 61627 |
| 17 | 88651 |
| 18 | 89731 |
| 19 | 133928 |
| 20 | 153428 |